Which sentence has an intransitive verb?
some people bring snowboards to the ski slopes.
the ski patrol sick or injured skiers.
many winter sports require balance and agility.
winter storms arrive suddenly in the mountains.

Winter storms arrive suddenly in the mountains.

Explanation:

Intransitive verbs: Intransitive verbs are action verbs representing a doable activity which do not require direct object for producing the full meaning of the sentence. In other words the action performed is not directly on the object.

Examples: go, arrive, lie, sleep, sit, sneeze.

Transitive Verbs: Transitive verbs are those in which action is performed directly on some object.

Examples: give, bring, take.

A technique to identify whether a verb is transitive or intransitive is to convert it into passive voice. If it can be converted into passive voice, the verb would be transitive, if not it would be intransitive.

It is also worth noting that some verbs may act as intransitive in one sentence or transitive in another sentence.

For Example:

He ran very fast on the road (intransitive verb). No passive voice of this sentence is possible.

He ran a marathon (transitive verb). Passive voice is possible (A marathon was run by him).

the metamorphosis is based on an evident father-son problem. this story shows, as a result of the unthinkable transformation of the son in an insect, the deformation and destruction of the individual caused by the authoritarian and hierarchical structures of the family. the narrative begins with the transformation into an insect of enormous proportions of the traveling salesman gregor samsa, a lonely, introverted and submissive, who keeps his family with his work. when he worked, he was appreciated by everyone, but, now that he can not work, he is despised, especially by his father, but this is going to be joined, painfully for the protagonist, first his mother and, finally, his own sister, grete, with whom he had held a special relationship of complicity and affection for many years.

condemned by a deep sense of responsibility, gregor fears the reaction that his frightful aspect will incite in his family. he feels guilty for not being able to continue being useful to the beings he maintained. his own family, however, is ashamed and runs away from him, and even tyrannizes and resists him. the father, of a severe and despotic character, humiliates him and treats him with great cruelty. all his attempts to escape from the confinement to which he is subjected in his own room fail before the hostile rejection of the beings that surround him. prisoner in his lair and unable to continue playing the only function of making money he had, finally chooses, with the consent of his parents and sister, to die of starvation. with this, he is freed from a servile and unhappy existence. the family appreciates gregor while he fulfills the interests. but when he is unable to continue earning money, it becomes a problem, a shame, and family relationships begin to become tense, until coexistence becomes impossible.